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0799c1a780
Global replacement of debugtools.h by wine/debug.h.
373 lines
9.4 KiB
C
373 lines
9.4 KiB
C
/*
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PostgreSQL Data Base Management System (formerly known as Postgres, then
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as Postgres95).
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Copyright (c) 1994-7 Regents of the University of California
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Permission to use, copy, modify, and distribute this software and its
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documentation for any purpose, without fee, and without a written agreement
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is hereby granted, provided that the above copyright notice and this
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paragraph and the following two paragraphs appear in all copies.
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IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR
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DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING
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LOST PROFITS, ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS
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DOCUMENTATION, EVEN IF THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
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INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
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ON AN "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATIONS TO
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PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
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*/
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/*-------------------------------------------------------------------------
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*
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* dt.h--
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* Definitions for the date/time and other date/time support code.
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* The support code is shared with other date data types,
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* including abstime, reltime, date, and time.
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*
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*
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* Copyright (c) 1994, Regents of the University of California
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef DT_H
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#define DT_H
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#include <time.h>
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#include <math.h>
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/* We have to include stdlib.h here because it defines many of these macros
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on some platforms, and we only want our definitions used if stdlib.h doesn't
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have its own.
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*/
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#include <stdlib.h>
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/* ----------------------------------------------------------------
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* Section 1: bool, true, false, TRUE, FALSE
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* ----------------------------------------------------------------
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*/
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/*
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* bool --
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* Boolean value, either true or false.
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*
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*/
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#define false ((char) 0)
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#define true ((char) 1)
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#ifndef __cplusplus
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#ifndef bool
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typedef char bool;
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#endif /* ndef bool */
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#endif /* not C++ */
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typedef bool *BoolPtr;
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#ifndef TRUE
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#define TRUE 1
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#endif /* TRUE */
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#ifndef FALSE
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#define FALSE 0
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#endif /* FALSE */
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/* ----------------------------------------------------------------
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* Section 3: standard system types
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* ----------------------------------------------------------------
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*/
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/*
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* intN --
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* Signed integer, EXACTLY N BITS IN SIZE,
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* used for numerical computations and the
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* frontend/backend protocol.
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*/
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typedef signed char int8; /* == 8 bits */
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typedef signed short int16; /* == 16 bits */
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typedef signed int int32; /* == 32 bits */
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/*
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* uintN --
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* Unsigned integer, EXACTLY N BITS IN SIZE,
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* used for numerical computations and the
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* frontend/backend protocol.
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*/
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typedef unsigned char uint8; /* == 8 bits */
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typedef unsigned short uint16; /* == 16 bits */
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typedef unsigned int uint32; /* == 32 bits */
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/*
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* floatN --
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* Floating point number, AT LEAST N BITS IN SIZE,
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* used for numerical computations.
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*
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* Since sizeof(floatN) may be > sizeof(char *), always pass
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* floatN by reference.
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*/
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typedef float float32data;
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typedef double float64data;
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typedef float *float32;
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typedef double *float64;
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/*
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* boolN --
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* Boolean value, AT LEAST N BITS IN SIZE.
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*/
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typedef uint8 bool8; /* >= 8 bits */
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typedef uint16 bool16; /* >= 16 bits */
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typedef uint32 bool32; /* >= 32 bits */
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/* Date/Time Configuration
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*
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* Constants to pass info from runtime environment:
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* USE_POSTGRES_DATES specifies traditional postgres format for output.
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* USE_ISO_DATES specifies ISO-compliant format for output.
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* USE_SQL_DATES specified Oracle/Ingres-compliant format for output.
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* USE_GERMAN_DATES specifies German-style dd.mm/yyyy date format.
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*
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* DateStyle specifies preference for date formatting for output.
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* EuroDates if client prefers dates interpreted and written w/European conventions.
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*
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* HasCTZSet if client timezone is specified by client.
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* CDayLight is the apparent daylight savings time status.
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* CTimeZone is the timezone offset in seconds.
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* CTZName is the timezone label.
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*/
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#define USE_POSTGRES_DATES 0
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#define USE_ISO_DATES 1
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#define USE_SQL_DATES 2
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#define USE_GERMAN_DATES 3
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extern int DateStyle;
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extern bool EuroDates;
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extern int CTimeZone;
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typedef double float8;
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struct varlena
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{
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int vl_len;
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char vl_dat[1];
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};
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typedef struct varlena text;
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typedef int AbsoluteTime;
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typedef int RelativeTime;
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/*
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* Note a leap year is one that is a multiple of 4
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* but not of a 100. Except if it is a multiple of
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* 400 then it is a leap year.
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*/
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#define isleap(y) (((y % 4) == 0) && (((y % 100) != 0) || ((y % 400) == 0)))
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/*
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* DateTime represents absolute time.
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* TimeSpan represents delta time. Keep track of months (and years)
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* separately since the elapsed time spanned is unknown until instantiated
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* relative to an absolute time.
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*
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* Note that Postgres uses "time interval" to mean a bounded interval,
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* consisting of a beginning and ending time, not a time span - thomas 97/03/20
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*/
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typedef double DateTime;
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typedef struct
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{
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double time; /* all time units other than months and
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* years */
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int month; /* months and years, after time for
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* alignment */
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} TimeSpan;
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/* ----------------------------------------------------------------
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* time types + support macros
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*
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* String definitions for standard time quantities.
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*
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* These strings are the defaults used to form output time strings.
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* Other alternate forms are hardcoded into token tables in dt.c.
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* ----------------------------------------------------------------
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*/
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#define DAGO "ago"
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#define DCURRENT "current"
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#define EPOCH "epoch"
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#define INVALID "invalid"
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#define EARLY "-infinity"
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#define LATE "infinity"
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#define NOW "now"
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#define TODAY "today"
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#define TOMORROW "tomorrow"
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#define YESTERDAY "yesterday"
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#define ZULU "zulu"
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#define DMICROSEC "usecond"
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#define DMILLISEC "msecond"
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#define DSECOND "second"
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#define DMINUTE "minute"
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#define DHOUR "hour"
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#define DDAY "day"
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#define DWEEK "week"
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#define DMONTH "month"
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#define DQUARTER "quarter"
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#define DYEAR "year"
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#define DDECADE "decade"
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#define DCENTURY "century"
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#define DMILLENIUM "millenium"
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#define DA_D "ad"
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#define DB_C "bc"
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#define DTIMEZONE "timezone"
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/*
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* Fundamental time field definitions for parsing.
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*
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* Meridian: am, pm, or 24-hour style.
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* Millenium: ad, bc
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*/
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#define AM 0
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#define PM 1
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#define HR24 2
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#define AD 0
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#define BC 1
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/*
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* Fields for time decoding.
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* Can't have more of these than there are bits in an unsigned int
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* since these are turned into bit masks during parsing and decoding.
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*/
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#define RESERV 0
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#define MONTH 1
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#define YEAR 2
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#define DAY 3
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#define TIMES 4 /* not used - thomas 1997-07-14 */
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#define TZ 5
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#define DTZ 6
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#define DTZMOD 7
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#define IGNOREFIELD 8
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#define AMPM 9
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#define HOUR 10
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#define MINUTE 11
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#define SECOND 12
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#define DOY 13
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#define DOW 14
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#define UNITS 15
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#define ADBC 16
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/* these are only for relative dates */
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#define AGO 17
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#define ABS_BEFORE 18
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#define ABS_AFTER 19
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/*
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* Token field definitions for time parsing and decoding.
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* These need to fit into the datetkn table type.
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* At the moment, that means keep them within [-127,127].
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* These are also used for bit masks in DecodeDateDelta()
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* so actually restrict them to within [0,31] for now.
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* - thomas 97/06/19
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* Not all of these fields are used for masks in DecodeDateDelta
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* so allow some larger than 31. - thomas 1997-11-17
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*/
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#define DTK_NUMBER 0
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#define DTK_STRING 1
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#define DTK_DATE 2
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#define DTK_TIME 3
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#define DTK_TZ 4
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#define DTK_AGO 5
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#define DTK_SPECIAL 6
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#define DTK_INVALID 7
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#define DTK_CURRENT 8
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#define DTK_EARLY 9
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#define DTK_LATE 10
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#define DTK_EPOCH 11
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#define DTK_NOW 12
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#define DTK_YESTERDAY 13
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#define DTK_TODAY 14
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#define DTK_TOMORROW 15
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#define DTK_ZULU 16
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#define DTK_DELTA 17
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#define DTK_SECOND 18
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#define DTK_MINUTE 19
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#define DTK_HOUR 20
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#define DTK_DAY 21
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#define DTK_WEEK 22
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#define DTK_MONTH 23
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#define DTK_QUARTER 24
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#define DTK_YEAR 25
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#define DTK_DECADE 26
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#define DTK_CENTURY 27
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#define DTK_MILLENIUM 28
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#define DTK_MILLISEC 29
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#define DTK_MICROSEC 30
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#define DTK_DOW 32
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#define DTK_DOY 33
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#define DTK_TZ_HOUR 34
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#define DTK_TZ_MINUTE 35
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/*
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* Bit mask definitions for time parsing.
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*/
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#define DTK_M(t) (0x01 << (t))
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#define DTK_DATE_M (DTK_M(YEAR) | DTK_M(MONTH) | DTK_M(DAY))
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#define DTK_TIME_M (DTK_M(HOUR) | DTK_M(MINUTE) | DTK_M(SECOND))
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#define MAXDATELEN 47 /* maximum possible length of an input
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* date string */
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#define MAXDATEFIELDS 25 /* maximum possible number of fields in a
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* date string */
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#define TOKMAXLEN 10 /* only this many chars are stored in
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* datetktbl */
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/* keep this struct small; it gets used a lot */
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typedef struct
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{
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#if defined(_AIX)
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char *token;
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#else
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char token[TOKMAXLEN];
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#endif /* _AIX */
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char type;
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char value; /* this may be unsigned, alas */
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} datetkn;
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/*
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* dt.c prototypes
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*/
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void j2date(int jd, int *year, int *month, int *day);
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int date2j(int year, int month, int day);
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int ParseDateTime(char *timestr, char *lowstr,
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char **field, int *ftype, int maxfields, int *numfields);
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int DecodeDateTime(char **field, int *ftype,
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int nf, int *dtype, struct tm * tm, double *fsec, int *tzp);
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int DecodeTimeOnly(char **field, int *ftype, int nf,
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int *dtype, struct tm * tm, double *fsec);
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#endif /* DT_H */
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